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Chapter 3
Troubleshooting
PWR LED is Off
LNK/ACT Port LED is Off
This chapter contains information on how to troubleshoot the switch in the
event that a problem occurs.
Note
If after following the instructions in this chapter you are unable to
resolve the problem, contact Allied Telesis Technical Support for
assistance. Refer to "Contacting Allied Telesis" on page 14 for
contact information.
If the LED is OFF, indicating that the unit is not receiving power, do the
following:
Ensure that the power cord is securely connected to the power source
and to the AC connector on the back panel of the switch.
Verify that the power outlet has power by connecting another device to
it.
Try connecting the unit to another power source.
Try using a different power cord.
Verify that the voltage from the power source is within the required
levels for your region.
If a LNK/ACT LED is OFF, do the following:
Verify that the end node connected to the port is powered ON and is
operating properly.
Verify that the twisted pair cable is securely connected to the port on
the switch and to the port on the end node.
Ensure that the twisted pair cable does not exceed 100 meters (328
feet).
47
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